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Question 1
Incorrect
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A 58-year-old man has been experiencing recurrent epigastric pain for several years. His symptoms improved with a proton pump inhibitor (PPI) but returned after discontinuing the medication. He tested positive for Helicobacter pylori, but his symptoms returned after receiving eradication therapy. He now has unexplained iron deficiency anemia. What is the most appropriate next step in management?
Your Answer: Refer to a dietician for advice including weight loss measures
Correct Answer: Refer for endoscopy under the 2-week wait pathway
Explanation:Management of a Patient with ‘Red Flag’ Symptoms: Urgent Referral for Endoscopy
When managing a patient aged over 55 years with ‘red flag’ symptoms such as gastrointestinal bleeding, anorexia, weight loss, dysphagia, or the presence of an epigastric mass, it is crucial to refer them for an urgent endoscopy to exclude serious pathology such as malignancy. In such cases, it would be inappropriate to manage the patient with medication alone, even if a previous trial of proton pump inhibitors (PPIs) provided effective symptom relief. While dietary and lifestyle advice could be provided, it would not be an appropriate management strategy as a single intervention. Additionally, retesting for H. pylori would not be necessary as adequate triple therapy for H. pylori eradication has reported high cure rates. The priority in managing such patients is to refer them for urgent endoscopy to ensure timely diagnosis and appropriate treatment.
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This question is part of the following fields:
- Gastroenterology/Nutrition
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Question 2
Correct
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A 60-year-old man visits his doctor complaining of urinary hesitancy, urgency and terminal dribbling that have been bothering him for the past 4 months. During a digital rectal examination, the doctor finds an enlarged, soft prostate with a smooth surface that is not tender. The patient's PSA reading is within the normal range. What is the most suitable treatment option?
Your Answer: α-blocker
Explanation:Treatment Options for Benign Prostatic Hypertrophy (BPH)
Benign prostatic hypertrophy (BPH) is a condition characterized by the proliferation of the cellular elements of the prostate, which can lead to chronic bladder outlet obstruction and a range of urinary symptoms. Treatment options for BPH depend on the severity of the symptoms and the size of the prostate.
The first-line drug of choice for men with moderate-to-severe lower urinary tract symptoms (LUTSs) is an α-blocker, such as alfuzosin, doxazosin, tamsulosin or terazosin. For men with larger prostates or higher prostate-specific antigen (PSA) levels, 5α-reductase inhibitors (e.g. finasteride) may also be offered. However, it is important to note that it may take up to 6 months for the patient to see an effect from this medication.
If storage symptoms persist after treatment with an α-blocker alone, anticholinergics such as oxybutynin may be added to the treatment plan. Surgery should only be considered for men with severe voiding symptoms that have not responded to drug therapy. First-line surgical options include transurethral resection of the prostate (TURP), monopolar transurethral vaporisation of the prostate (TUVP), or holmium laser enucleation of the prostate (HoLEP). Open prostatectomy should be reserved for men with very large prostates.
It is important to seek medical attention if conservative management options have failed or are not appropriate, as untreated BPH can lead to serious complications such as urinary retention, renal insufficiency, recurrent urinary tract infections, gross haematuria, and bladder calculi.
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This question is part of the following fields:
- Renal Medicine/Urology
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Question 3
Incorrect
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A middle-aged man is concerned that the lump he has discovered in his neck may be due to Hodgkin's disease. A routine work-up is completely negative, but he continues to worry about it.
Which of the following is the most likely condition here?
Your Answer: Somatisation disorder
Correct Answer: Hypochondriasis
Explanation:Differentiating Hypochondriasis from Other Disorders
Hypochondriasis is a condition characterized by persistent preoccupation with having a serious physical illness. However, it is important to differentiate it from other disorders with similar symptoms.
Conversion disorder is a neurological condition that presents with loss of function without an organic cause. Delusional disorder-somatic type involves delusional thoughts about having a particular illness or physical problem. In somatisation disorder, patients present with medically unexplained symptoms and seek medical attention to find an explanation for them. Factitious disorder involves deliberately producing symptoms for attention as a patient.
It is important to note that in hypochondriasis, the patient’s beliefs are not as fixed as they would be in delusional disorder-somatic type, and worry dominates the picture. In somatisation disorder, the emphasis is on the symptoms rather than a specific diagnosis, while in hypochondriasis, the patient puts emphasis on the presence of a specific illness. Factitious disorder involves deliberate production of symptoms, which is not present in hypochondriasis.
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This question is part of the following fields:
- Psychiatry
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Question 4
Incorrect
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You are conducting an interview with a 24-year-old man who has arrived at the emergency department after self-harming. As you converse with him, you observe that his facial expression is devoid of emotion, his tone of voice is flat, and his body language lacks any animation. This is evident even when he talks about his traumatic experiences of childhood abuse. How would you record this in your documentation?
Your Answer: Apathy
Correct Answer: Flattened affect
Explanation:Affect and mood can be easily confused during a mental state exam. Affect refers to the current emotional state that can be observed, while mood is the predominant emotional state over a longer period. It is helpful to think of affect as the weather on a particular day and mood as the overall climate.
Mood is determined by the patient’s history and can be described as their emotional state over the past month. Symptoms of depression or mania can be used to determine the patient’s mood. On the other hand, affect is the emotional state that is currently being displayed by the patient during the assessment. It is expressed through facial expressions, voice tone, and body movements. Affect can be normal, restricted, blunted, or flat. Labile affect is characterized by abrupt shifts in emotions.
In the given scenario, the patient is displaying a flattened affect, which means there is no expression of emotion. Apathy may be a symptom present in the patient’s history, but the scenario is specifically referring to the current observed emotional state. Depressed mood may also be present, but it is discussed in the patient’s history and is not the same as affect. Symptoms of depressed mood include anhedonia, low mood, lack of energy, poor concentration, and poor sleep.
Thought disorders can manifest in various ways, including circumstantiality, tangentiality, neologisms, clang associations, word salad, Knight’s move thinking, flight of ideas, perseveration, and echolalia. Circumstantiality involves providing excessive and unnecessary detail when answering a question, but eventually returning to the original point. Tangentiality, on the other hand, refers to wandering from a topic without returning to it. Neologisms are newly formed words, often created by combining two existing words. Clang associations occur when ideas are related only by their similar sounds or rhymes. Word salad is a type of speech that is completely incoherent, with real words strung together into nonsensical sentences. Knight’s move thinking is a severe form of loosening of associations, characterized by unexpected and illogical leaps from one idea to another. Flight of ideas is a thought disorder that involves jumping from one topic to another, but with discernible links between them. Perseveration is the repetition of ideas or words despite attempts to change the topic. Finally, echolalia is the repetition of someone else’s speech, including the question that was asked.
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This question is part of the following fields:
- Psychiatry
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Question 5
Incorrect
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A 55-year-old woman visits the clinic with a complaint of experiencing night sweats and hot flashes for the past year. She had her last menstrual period 20 months ago. The patient is currently undergoing treatment with tamoxifen for breast cancer. She reports no other symptoms but would like to receive medication to alleviate her hot flashes. What is the most suitable prescription for her?
Your Answer: Topical oestrogen
Correct Answer: Venlafaxine
Explanation:For patients with active hormone-responsive breast cancer, hormonal methods like HRT and tibolone are not recommended. Instead, non-hormonal methods like selective serotonin reuptake inhibitors and venlafaxine may be used to alleviate vasomotor symptoms of menopause. Topical estrogen can also be used to alleviate symptoms of vaginal atrophy, but it does not help with vasomotor symptoms. COCP is not a suitable treatment for menopausal symptoms.
Managing Menopause: Lifestyle Modifications, Hormone Replacement Therapy, and Non-Hormone Replacement Therapy
Menopause is a natural biological process that marks the end of a woman’s reproductive years. It is diagnosed when a woman has not had a period for 12 consecutive months. Menopausal symptoms are common and can last for up to 7 years, with varying degrees of severity and duration. The management of menopause can be divided into three categories: lifestyle modifications, hormone replacement therapy (HRT), and non-hormone replacement therapy.
Lifestyle modifications can help manage menopausal symptoms such as hot flushes, sleep disturbance, mood changes, and cognitive symptoms. Regular exercise, weight loss, stress reduction, and good sleep hygiene are recommended. For women who cannot or do not want to take HRT, non-hormonal treatments such as fluoxetine, citalopram, or venlafaxine for vasomotor symptoms, vaginal lubricants or moisturizers for vaginal dryness, and cognitive behavior therapy or antidepressants for psychological symptoms can be prescribed.
HRT is a treatment option for women with moderate to severe menopausal symptoms. However, it is contraindicated in women with current or past breast cancer, any estrogen-sensitive cancer, undiagnosed vaginal bleeding, or untreated endometrial hyperplasia. HRT brings certain risks, including venous thromboembolism, stroke, coronary heart disease, breast cancer, and ovarian cancer. Women should be advised of these risks and the fact that symptoms typically last for 2-5 years.
When stopping HRT, it is important to gradually reduce the dosage to limit recurrence of symptoms in the short term. However, in the long term, there is no difference in symptom control. Women who experience ineffective treatment, ongoing side effects, or unexplained bleeding should be referred to secondary care. Overall, managing menopause requires a personalized approach that takes into account a woman’s medical history, preferences, and individual symptoms.
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This question is part of the following fields:
- Reproductive Medicine
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Question 6
Incorrect
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A 35-year-old man presented to his GP with bilateral deafness. Rinne’s test was found to be negative bilaterally. Weber's test was referred to both sides. On examination of his tympanic membrane, Schwartz's sign was visible.
Which of the following is the MOST likely cause of his symptoms?
Your Answer: Cholesteatoma
Correct Answer: Otosclerosis
Explanation:Understanding the Causes of Hearing Loss: A Comparison of Otosclerosis, Cholesteatoma, Ménière’s Disease, Otitis Externa, and Otitis Media
Hearing loss can be caused by a variety of factors, including otosclerosis, cholesteatoma, Ménière’s disease, otitis externa, and otitis media. When conducting a differential diagnosis, it is important to consider the patient’s age, symptoms, and medical history.
Otosclerosis is a common cause of hearing loss in young adults, typically presenting as unilateral conductive hearing loss that progresses bilaterally. A negative Rinne’s test is indicative of conductive deafness, and a pink tinge on the tympanic membrane (Schwartz’s sign) is a diagnostic indicator for otosclerosis.
Cholesteatoma, on the other hand, typically presents with unilateral conductive hearing loss and/or ear discharge. Given the patient’s bilateral symptoms and young age, cholesteatoma is less likely to be the cause of her hearing loss.
Ménière’s disease is characterized by sudden attacks of tinnitus, vertigo, a sensation of fullness in the ear, and fluctuating sensorineural hearing loss. This is not the likely cause of the patient’s conductive hearing loss.
Otitis externa is inflammation of the external ear canal, which can cause hearing loss in rare cases due to occlusion of the ear canal from inflammation. Otitis media, on the other hand, is inflammation of the middle ear and is more commonly seen in children. It may present with unilateral conductive deafness, but is unlikely to be the cause of the patient’s bilateral symptoms.
In conclusion, when considering the causes of hearing loss, it is important to take into account the patient’s age, symptoms, and medical history. Otosclerosis is the most likely cause of conductive hearing loss in young adults, while cholesteatoma, Ménière’s disease, otitis externa, and otitis media may also be potential causes depending on the individual case.
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This question is part of the following fields:
- ENT
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Question 7
Incorrect
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A typically healthy 44-year-old man is hospitalized with T11/12 discitis that is complicated by a T4 to L1 epidural abscess and a left psoas abscess. Following surgery to drain the abscesses, laboratory cultures reveal the presence of Staphylococcus aureus. Furthermore, blood cultures taken upon admission grow Staphylococcus aureus after 72 hours. What is the most suitable initial investigation to identify the source of the infection, given the pathogenic organism detected?
Your Answer:
Correct Answer: Echocardiogram
Explanation:In cases of discitis caused by Staphylococcus, an echocardiogram is necessary to check for endocarditis. Staphylococcus aureus is a highly aggressive pathogen that can spread throughout the body when it enters the bloodstream. In cases of deep abscesses caused by Staphylococcus aureus, a haematogenous source of spread should be investigated, with septic emboli from endocarditis being the most common cause. An echocardiogram is necessary to check for valvular injury or vegetations in all cases of Staphylococcus aureus-positive cultures. CT imaging is useful in identifying other abscesses and foci of infection, but is unlikely to identify a primary source of haematogenous spread. HIV testing is recommended for patients with Staphylococcus aureus sepsis, but it would not identify the primary source of bacteraemia. Midstream urine is not a reliable test for identifying a primary source of Staphylococcus aureus infection. The Duke’s Criteria for Endocarditis can be used to diagnose bacterial endocarditis, with a positive blood culture for a typical organism being one major criterion. Treatment for complicated discitis typically lasts for 6-12 weeks, with the first two weeks requiring intravenous treatment. If endocarditis is diagnosed, the length of intravenous therapy and overall treatment time may be altered.
Understanding Discitis: Causes, Symptoms, Diagnosis, and Treatment
Discitis is a condition characterized by an infection in the intervertebral disc space, which can lead to serious complications such as sepsis or an epidural abscess. The most common cause of discitis is bacterial, with Staphylococcus aureus being the most frequent culprit. However, it can also be caused by viral or aseptic factors. The symptoms of discitis include back pain, pyrexia, rigors, and sepsis. In some cases, neurological features such as changing lower limb neurology may occur if an epidural abscess develops.
To diagnose discitis, imaging tests such as MRI are used due to their high sensitivity. A CT-guided biopsy may also be required to guide antimicrobial treatment. The standard therapy for discitis involves six to eight weeks of intravenous antibiotic therapy. The choice of antibiotic depends on various factors, with the most important being the identification of the organism through a positive culture, such as a blood culture or CT-guided biopsy.
Complications of discitis include sepsis and epidural abscess. Therefore, it is essential to assess the patient for endocarditis, which can be done through transthoracic echo or transesophageal echo. Discitis is usually due to haematogenous seeding of the vertebrae, which implies that the patient has had a bacteraemia, and seeding could have occurred elsewhere. Understanding the causes, symptoms, diagnosis, and treatment of discitis is crucial in managing this condition and preventing its complications.
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This question is part of the following fields:
- Musculoskeletal
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Question 8
Incorrect
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A 59-year-old man comes to his General Practitioner complaining of severe dizziness, double vision and tinnitus whenever he lifts weights. He is a non-smoker and is in good health otherwise. During the examination, there is a difference of 35 mmHg between the systolic blood pressure (BP) in his left and right arms. His cardiovascular examination is otherwise unremarkable. His neurological examination is also normal.
What is the most probable diagnosis?Your Answer:
Correct Answer: Subclavian steal syndrome
Explanation:Differentiating Subclavian Steal Syndrome from Other Conditions
Subclavian steal syndrome is a condition that occurs when the subclavian artery is narrowed or blocked, leading to reversed blood flow in the vertebral artery. This can cause arm claudication and transient neurological symptoms when the affected arm is exercised. A key diagnostic feature is a systolic blood pressure difference of at least 15 mmHg between the affected and non-affected arms. However, other conditions can also cause discrepancies in blood pressure or similar symptoms, making it important to differentiate subclavian steal syndrome from other possibilities.
Aortic dissection is a medical emergency that can cause a sudden onset of chest pain and rapidly deteriorating symptoms. Benign paroxysmal positional vertigo (BPPV) is characterized by vertigo triggered by head movements, but does not involve blood pressure differences or diplopia. Buerger’s disease is a rare condition that can cause blood pressure discrepancies, but also involves skin changes and tissue ischemia. Carotid sinus hypersensitivity (CSH) can cause syncope when pressure is applied to the neck, but does not explain the other symptoms reported by the patient.
In summary, a thorough evaluation is necessary to distinguish subclavian steal syndrome from other conditions that may present with similar symptoms.
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This question is part of the following fields:
- Cardiovascular
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Question 9
Incorrect
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A 16-year-old male presents to the dermatology clinic for follow-up. He has a previous medical history of acne and is currently taking oral lymecycline. Despite treatment, there has been no improvement and upon examination, scarring is evident on his face. What is the most appropriate course of treatment?
Your Answer:
Correct Answer: Oral retinoin
Explanation:Referral for oral retinoin is recommended for patients with scarring.
Acne vulgaris is a common skin condition that typically affects adolescents, with the face, neck, and upper trunk being the most commonly affected areas. It is characterized by the obstruction of hair follicles with keratin plugs, leading to the formation of comedones, inflammation, and pustules. The severity of acne can be classified as mild, moderate, or severe, depending on the presence and extent of inflammatory lesions, papules, and pustules.
The management of acne vulgaris typically involves a step-up approach, starting with single topical therapy such as topical retinoids or benzoyl peroxide. If this is not effective, topical combination therapy may be used, which includes a topical antibiotic, benzoyl peroxide, and topical retinoid. Oral antibiotics such as tetracyclines may also be prescribed, but they should be avoided in pregnant or breastfeeding women and children under 12 years of age. Erythromycin may be used in pregnancy, while minocycline is now considered less appropriate due to the possibility of irreversible pigmentation. Oral antibiotics should be used for a maximum of three months and always co-prescribed with a topical retinoid or benzoyl peroxide to reduce the risk of antibiotic resistance.
Combined oral contraceptives (COCP) are an alternative to oral antibiotics in women, and Dianette (co-cyrindiol) may be used as it has anti-androgen properties. However, it has an increased risk of venous thromboembolism compared to other COCPs, so it should generally be used second-line and for only three months. Oral isotretinoin is a potent medication that should only be used under specialist supervision, and it is contraindicated in pregnancy. Finally, there is no evidence to support dietary modification in the management of acne vulgaris.
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This question is part of the following fields:
- Dermatology
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Question 10
Incorrect
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A 25-year-old male comes to the neurology department with complaints of weakness. He initially experienced weakness in his legs a few days ago, which has now progressed to involve his arms. Additionally, he is experiencing shooting pains in his back and limbs. About four weeks ago, he had a brief episode of vomiting and diarrhea. Upon examination, reduced tendon reflexes and weakness are confirmed.
What test results would you anticipate for this patient?Your Answer:
Correct Answer: Abnormal nerve conduction studies
Explanation:Guillain-Barre syndrome can be diagnosed with the help of nerve conduction studies. The presence of ascending weakness after an infection is a common symptom of this syndrome. Most patients with Guillain-Barre syndrome show abnormal nerve conduction study results. If there are cord signal changes, it may indicate spinal cord compression or a spinal lesion. Inflammatory infiltrates on muscle biopsy are typically observed in patients with myositis. Myasthenia gravis is characterized by the presence of anti-acetylcholine receptor antibodies. In Guillain-Barre syndrome, the CSF protein level is usually elevated, not decreased.
Understanding Guillain-Barre Syndrome: Symptoms and Features
Guillain-Barre syndrome is a condition that affects the peripheral nervous system and is caused by an immune-mediated demyelination. It is often triggered by an infection, with Campylobacter jejuni being a common culprit. The initial symptoms of the illness include back and leg pain, which is experienced by around 65% of patients. The characteristic feature of Guillain-Barre syndrome is a progressive, symmetrical weakness of all the limbs, with the weakness typically starting in the legs and ascending upwards. Reflexes are reduced or absent, and sensory symptoms tend to be mild, with very few sensory signs.
Other features of Guillain-Barre syndrome may include a history of gastroenteritis, respiratory muscle weakness, cranial nerve involvement, diplopia, bilateral facial nerve palsy, oropharyngeal weakness, and autonomic involvement. Autonomic involvement may manifest as urinary retention or diarrhea. Less common findings may include papilloedema, which is thought to be secondary to reduced CSF resorption.
To diagnose Guillain-Barre syndrome, a lumbar puncture may be performed, which can reveal a rise in protein with a normal white blood cell count (albuminocytologic dissociation) in 66% of cases. Nerve conduction studies may also be conducted, which can show decreased motor nerve conduction velocity due to demyelination, prolonged distal motor latency, and increased F wave latency. Understanding the symptoms and features of Guillain-Barre syndrome is crucial for prompt diagnosis and treatment.
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This question is part of the following fields:
- Neurology
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Question 11
Incorrect
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A 26-year-old male with no significant medical history is brought to the operating room for an emergency appendectomy. He is induced with sevoflurane and maintained on sevoflurane and propofol. Suddenly, an alert on the anesthesia machine pops up, indicating elevated end-tidal CO2. The patient's condition appears to have worsened, with skin mottling and excessive sweating.
What could be the probable cause of this sudden change in the patient's condition?Your Answer:
Correct Answer: Malignant hyperthermia
Explanation:Volatile liquid anaesthetics (isoflurane, desflurane, sevoflurane) can cause malignant hyperthermia, a rare genetic disorder that causes skeletal muscle to contract rapidly and can lead to acidosis, increased CO2, and elevated body temperature. This is the likely cause of the patient’s acute deterioration after receiving sevoflurane. Other potential causes, such as cardiac arrest, endobronchial intubation, normal anion gap metabolic acidosis, and spontaneous appendix perforation, do not explain the specific symptoms observed.
Overview of General Anaesthetics
General anaesthetics are drugs used to induce a state of unconsciousness in patients undergoing surgical procedures. There are two main types of general anaesthetics: inhaled and intravenous. Inhaled anaesthetics, such as isoflurane, desflurane, sevoflurane, and nitrous oxide, are administered through inhalation. These drugs work by acting on various receptors in the brain, including GABAA, glycine, NDMA, nACh, and 5-HT3 receptors. Inhaled anaesthetics can cause adverse effects such as myocardial depression, malignant hyperthermia, and hepatotoxicity.
Intravenous anaesthetics, such as propofol, thiopental, etomidate, and ketamine, are administered through injection. These drugs work by potentiating GABAA receptors or blocking NDMA receptors. Intravenous anaesthetics can cause adverse effects such as pain on injection, hypotension, laryngospasm, myoclonus, and disorientation. However, they are often preferred over inhaled anaesthetics in cases of haemodynamic instability.
It is important to note that the exact mechanism of action of general anaesthetics is not fully understood. Additionally, the choice of anaesthetic depends on various factors such as the patient’s medical history, the type of surgery, and the anaesthetist’s preference. Overall, general anaesthetics play a crucial role in modern medicine by allowing for safe and painless surgical procedures.
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This question is part of the following fields:
- Cardiovascular
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Question 12
Incorrect
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A 75-year-old man presented to the eye clinic with double vision. He has been experiencing this for the past few weeks. During examination, it was observed that he had horizontal diplopia and slight limitation of one of the extraocular muscles in his left eye. The patient has a medical history of hypertension and prostate cancer. Brain imaging revealed a metastatic lesion in the clivus that surrounds the cavernous sinus and carotid artery. Which cranial nerve palsy is responsible for the diplopia in this patient?
Your Answer:
Correct Answer: Left sixth cranial nerve (CN6) palsy
Explanation:Understanding the 12 Cranial Nerves and their Functions
The human body has 12 pairs of cranial nerves that originate from the brainstem and control various functions such as movement, sensation, and reflexes. Each nerve has a specific function and pathway, and damage to any of these nerves can result in various clinical symptoms.
Some of the important functions of these nerves include smell (olfactory nerve), sight (optic nerve), eye movement (oculomotor, trochlear, and abducens nerves), facial sensation and mastication (trigeminal nerve), facial movement and taste (facial nerve), hearing and balance (vestibulocochlear nerve), taste and swallowing (glossopharyngeal nerve), phonation and innervation of viscera (vagus nerve), head and shoulder movement (accessory nerve), and tongue movement (hypoglossal nerve).
In addition to their primary functions, some of these nerves also play a role in various reflexes such as the corneal reflex, jaw jerk reflex, gag reflex, carotid sinus reflex, pupillary light reflex, and lacrimation reflex. Understanding the functions and pathways of these cranial nerves is essential for diagnosing and treating various neurological conditions.
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This question is part of the following fields:
- Neurology
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Question 13
Incorrect
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A mother brings her 8-month-old son to your clinic with concerns about his left eye. She reports that his left eye is constantly watering and occasionally becomes sticky, but there is no yellow or green discharge. The child has been treated twice with chloramphenicol drops, but there was no improvement. A negative eye swab was obtained last month. The child is healthy and has no issues with visual development. What would be your approach to managing this patient?
Your Answer:
Correct Answer: Reassurance and advice to continue conservative treatment unless symptoms persist beyond 1 year of age
Explanation:Recurrent watery or sticky eyes in neonates may be caused by congenital tear duct obstruction, which typically resolves on its own by the age of 1. This condition can often be mistaken for conjunctivitis, leading to multiple appointments and unsuccessful treatment with chloramphenicol drops and negative swabs. Parents should be reassured that most cases will resolve on their own, but if symptoms persist beyond 1 year, a referral to an ophthalmologist is recommended.
Understanding Nasolacrimal Duct Obstruction in Infants
Nasolacrimal duct obstruction is a common condition that affects around 10% of infants at one month of age. It is characterized by a persistent watery eye caused by an imperforate membrane, usually located at the lower end of the lacrimal duct. Fortunately, symptoms usually resolve on their own by the age of one year in 95% of cases.
To manage this condition, parents can be taught to massage the lacrimal duct to help clear any blockages. However, if symptoms persist beyond one year, it is recommended to seek the advice of an ophthalmologist. In such cases, probing may be considered, which is a procedure done under a light general anaesthetic. By understanding the causes and management of nasolacrimal duct obstruction, parents can take the necessary steps to ensure their child’s eye health and comfort.
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This question is part of the following fields:
- Ophthalmology
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Question 14
Incorrect
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A 28-year-old patient complains of a painful bump on their eyelid. The lump has been there for about four days and is gradually getting bigger.
During the examination, a tender, smooth lump is observed, measuring roughly 2 mm in size, emerging from the outer edge of the left upper eyelid. The eye is not inflamed, and there is no periorbital or orbital redness, and the patient's visual acuity is normal.
What is the best course of action for managing this condition?Your Answer:
Correct Answer: Provide advice on application of hot compresses and simple analgesia
Explanation:Management of Stye or Hordeolum
A stye or hordeolum is an acute and painful swelling of the eyelid caused by inflammation in an eyelash follicle. It usually presents unilaterally and can take a few days to develop. While it does not affect visual acuity, it can cause watery eyes. The first-line management for a stye is the application of warm compresses a few times a day, which can help the stye resolve or drain. However, if symptoms do not improve, referral to Eye Casualty for incision and drainage may be necessary. Topical antibiotics are not recommended in the absence of conjunctivitis, and systemic antibiotics are not indicated unless there are signs of cellulitis over the eyelid. Therefore, simple analgesia and warm compresses are the recommended management for a stye or hordeolum.
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This question is part of the following fields:
- Ophthalmology
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Question 15
Incorrect
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A 92-year-old male was admitted to the stroke ward with right-sided facial droop and hemiplegia. CT head revealed a significant infarct in the left middle cerebral artery. The patient has finished a 2-week course of high-dose aspirin (300mg) for the management of an acute ischemic stroke. What is the best choice for secondary prevention?
Your Answer:
Correct Answer: Switch to clopidogrel
Explanation:The preferred antiplatelet for secondary prevention following a stroke is clopidogrel 75mg, as it reduces the risk of major adverse cardiovascular events. It is recommended for patients who have had a transient ischaemic attack or confirmed stroke after two weeks of high-dose aspirin. Low-dose aspirin (75mg) and modified-release dipyridamole can be used as an alternative if clopidogrel is contraindicated. High-dose aspirin (300 mg) is only indicated in the first 2 weeks after an acute ischaemic stroke. Anticoagulants such as DOACs and warfarin are used to prevent clot formation and embolisation in patients with atrial fibrillation (AF) to reduce the risk of stroke. However, since there is no evidence of AF in this patient, these options are not applicable.
The Royal College of Physicians (RCP) and NICE have published guidelines on the diagnosis and management of patients following a stroke. The management of acute stroke includes maintaining normal levels of blood glucose, hydration, oxygen saturation, and temperature. Blood pressure should not be lowered in the acute phase unless there are complications. Aspirin should be given as soon as possible if a haemorrhagic stroke has been excluded. Anticoagulants should not be started until brain imaging has excluded haemorrhage. Thrombolysis with alteplase should only be given if administered within 4.5 hours of onset of stroke symptoms and haemorrhage has been definitively excluded. Mechanical thrombectomy is a new treatment option for patients with an acute ischaemic stroke. NICE recommends thrombectomy for people who have acute ischaemic stroke and confirmed occlusion of the proximal anterior circulation demonstrated by computed tomographic angiography or magnetic resonance angiography. Secondary prevention includes the use of clopidogrel and dipyridamole. Carotid artery endarterectomy should only be considered if carotid stenosis is greater than 70% according to ECST criteria or greater than 50% according to NASCET criteria.
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This question is part of the following fields:
- Neurology
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Question 16
Incorrect
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A 25-year-old woman presents to her GP with a 4-week history of dry cough and chest tightness. She was diagnosed with asthma 8-months ago and has been using a salbutamol inhaler as needed. However, she has noticed an increase in shortness of breath over the past month and has been using her inhaler up to 12 times per day.
During the examination, her vital signs are normal. Her peak expiratory flow rate is 290L/min (best 400 L/min).
What is the next course of action in managing this patient's asthma symptoms?Your Answer:
Correct Answer: Low-dose inhaled corticosteroid
Explanation:For an adult with asthma that is not controlled by a short-acting beta-agonist, the appropriate next step is to add a low-dose inhaled corticosteroid. This is in accordance with NICE guidelines. The addition of a combined inhaled corticosteroid and long-acting beta-agonist is not recommended until symptoms cannot be controlled with a low-dose inhaled corticosteroid and a short-acting beta-agonist, with or without a leukotriene receptor antagonist. Similarly, a leukotriene receptor antagonist or long-acting beta-agonist should not be introduced until symptoms are not controlled with a low-dose inhaled corticosteroid and a short-acting beta-agonist, with or without a leukotriene receptor antagonist.
The management of asthma in adults has been updated by NICE in 2017, following the 2016 BTS guidelines. One of the significant changes is in ‘step 3’, where patients on a SABA + ICS whose asthma is not well controlled should be offered a leukotriene receptor antagonist instead of a LABA. NICE does not follow the stepwise approach of the previous BTS guidelines, but to make the guidelines easier to follow, we have added our own steps. The steps range from newly-diagnosed asthma to SABA +/- LTRA + one of the following options, including increasing ICS to high-dose, a trial of an additional drug, or seeking advice from a healthcare professional with expertise in asthma. Maintenance and reliever therapy (MART) is a form of combined ICS and LABA treatment that is only available for ICS and LABA combinations in which the LABA has a fast-acting component. It should be noted that NICE does not recommend changing treatment in patients who have well-controlled asthma simply to adhere to the latest guidance. The definitions of what constitutes a low, moderate, or high-dose ICS have also changed, with <= 400 micrograms budesonide or equivalent being a low dose, 400 micrograms - 800 micrograms budesonide or equivalent being a moderate dose, and > 800 micrograms budesonide or equivalent being a high dose for adults.
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This question is part of the following fields:
- Respiratory Medicine
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Question 17
Incorrect
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A 25-year-old male presents to the Emergency Department with severe abdominal pain. He appears to be in distress, shivering and writhing on the trolley. Despite previous investigations for abdominal pain, no cause has been found. The patient insists that he will harm himself unless he is given morphine for the pain. Which of the following best describes this behavior?
Your Answer:
Correct Answer: Malingering
Explanation:Fabricating or inflating symptoms for financial benefit is known as malingering, such as an individual who feigns whiplash following a car accident in order to receive an insurance payout.
This can be challenging as the individual may be experiencing withdrawal symptoms from opioid abuse. Nevertheless, among the given choices, the most suitable term to describe the situation is malingering since the individual is intentionally reporting symptoms to obtain morphine.
Psychiatric Terms for Unexplained Symptoms
There are various psychiatric terms used to describe patients who exhibit symptoms for which no organic cause can be found. One such disorder is somatisation disorder, which involves the presence of multiple physical symptoms for at least two years, and the patient’s refusal to accept reassurance or negative test results. Another disorder is illness anxiety disorder, which is characterized by a persistent belief in the presence of an underlying serious disease, such as cancer, despite negative test results.
Conversion disorder is another condition that involves the loss of motor or sensory function, and the patient does not consciously feign the symptoms or seek material gain. Patients with this disorder may be indifferent to their apparent disorder, a phenomenon known as la belle indifference. Dissociative disorder, on the other hand, involves the process of ‘separating off’ certain memories from normal consciousness, and may manifest as amnesia, fugue, or stupor. Dissociative identity disorder (DID) is the most severe form of dissociative disorder and was previously known as multiple personality disorder.
Factitious disorder, also known as Munchausen’s syndrome, involves the intentional production of physical or psychological symptoms. Finally, malingering is the fraudulent simulation or exaggeration of symptoms with the intention of financial or other gain. Understanding these psychiatric terms can help healthcare professionals better diagnose and treat patients with unexplained symptoms.
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This question is part of the following fields:
- Psychiatry
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Question 18
Incorrect
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An 80-year-old man comes to the liver clinic for his regular check-up. He has been a patient of the clinic for a while due to his liver cirrhosis caused by alcohol abuse. During the examination, he appears cachexic and jaundiced. Upon closer inspection of his abdomen, it is distended, and the shifting dullness test indicates the presence of free fluid in the abdomen. A sample of the fluid is collected, which shows 17g/l of fluid protein. What medication would be the most appropriate to prescribe?
Your Answer:
Correct Answer: Spironolactone
Explanation:The recommended treatment for ascites in this patient with liver cirrhosis is spironolactone. This medication is an aldosterone antagonist that helps counteract the fluid overload caused by secondary hyperaldosteronism in patients with hepatic cirrhosis. Azathioprine is not appropriate for this patient as it is used to treat autoimmune hepatitis. Ciprofloxacin may be prescribed for spontaneous ascites, but only if the ascitic protein is 15 g/litre or less, which is not the case for this patient. Prednisolone is used for acute liver failure, which is not the diagnosis for this patient with chronic liver disease.
Spironolactone is a medication that works as an aldosterone antagonist in the cortical collecting duct. It is used to treat various conditions such as ascites, hypertension, heart failure, nephrotic syndrome, and Conn’s syndrome. In patients with cirrhosis, spironolactone is often prescribed in relatively large doses of 100 or 200mg to counteract secondary hyperaldosteronism. It is also used as a NICE ‘step 4’ treatment for hypertension. However, it is important to note that spironolactone can cause hyperkalaemia and gynaecomastia, although the latter is less common with eplerenone.
One study, known as RALES, found that low dose spironolactone can reduce all-cause mortality in patients with NYHA III + IV heart failure who are already taking an ACE inhibitor. It is important to consult with a healthcare professional before taking spironolactone to determine if it is the right medication for your specific condition and to monitor for any potential adverse effects.
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This question is part of the following fields:
- Gastroenterology/Nutrition
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Question 19
Incorrect
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To prevent adverse drug effects, which drug from the list below should have their serum levels monitored?
Select the SINGLE most important drug from the list below.Your Answer:
Correct Answer: Theophylline
Explanation:Monitoring Medications: Guidelines for Serum Level and Function Tests
Theophylline: To avoid toxicity, serum theophylline levels should be monitored due to its narrow therapeutic window. A concentration of 10-20 mg/l is required for bronchodilatation, but adverse effects can occur within this range and increase at concentrations >20 mg/l. Plasma theophylline concentration should be measured 5 days after starting oral treatment and at least 3 days after any dose adjustment.
Carbimazole: The maintenance dose for this anti-thyroid drug is determined by measuring fT4 and TSH levels.
Warfarin: The INR, not serum level monitoring, is used to assess the effect of this anticoagulant.
Rifampicin: Renal and hepatic function should be checked before treatment. Further checks are necessary only if the patient develops fever, malaise, vomiting, jaundice, or unexplained deterioration during treatment. However, liver function and full blood count should be monitored on prolonged therapy.
Cyclophosphamide: Side effects from this medication include bone marrow suppression and haemorrhagic cystitis, related to the cumulative medication dose. A full blood count and urinalysis should be monitored regularly in patients taking this medication.
Guidelines for Monitoring Medications: Serum Levels and Function Tests
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This question is part of the following fields:
- Pharmacology/Therapeutics
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Question 20
Incorrect
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A 52-year-old patient visits the GP clinic with diffuse subconjunctival haemorrhage in the left eye. The patient denies any previous eye injury. There is no impact on visual acuity, and the eye is painless. The doctor observes that the patient has atrial fibrillation and dry eyes. The patient is taking warfarin and sodium hyaluronate eyedrops. What is the next best course of action for management?
Your Answer:
Correct Answer: Check the International Normalisation Ratio(INR)
Explanation:Detecting warfarin over anticoagulation can be crucial, and subconjunctival haemorrhage may serve as an early indicator. If a patient experiences non-traumatic subconjunctival haemorrhage, it is important to check their INR level before proceeding with any other treatment. Urgent ophthalmology review is unnecessary if the patient’s vision is unaffected. If the INR level is normal, the patient can be reassured that the condition will resolve on its own within a few weeks. Topical lubricants may be prescribed to alleviate any irritation caused by the subconjunctival haemorrhage. A skull x-ray is not necessary in this case as there is no history of trauma.
Understanding Subconjunctival Haemorrhage
Subconjunctival haemorrhage occurs when blood vessels bleed into the subconjunctival space, usually those that supply the conjunctiva or episclera. Trauma is the most common cause, followed by spontaneous idiopathic cases, Valsalva manoeuvres, and several systemic diseases. Although subconjunctival haemorrhages can look alarming, they are rarely an indicator of anything sinister.
Subconjunctival haemorrhages are more common in women than in men when there has been no history of trauma. The annual incidence of non-traumatic subconjunctival haemorrhages is 0.6%, and the risk increases with age as the risk factors are more common in elderly patients. Newborns are also more susceptible. The incidence of both traumatic and non-traumatic subconjunctival haemorrhages is 2.6%.
The most common causes of subconjunctival haemorrhages are trauma and contact lens usage, which are often the sole risk factor in younger patients. Other risk factors include idiopathic causes, Valsalva manoeuvre, hypertension, bleeding disorders, drugs such as aspirin, NSAIDs and anticoagulants, diabetes, arterial disease, and hyperlipidaemia.
Subconjunctival haemorrhages are mostly asymptomatic, but patients may experience mild irritation. The main sign is a flat, red patch on the conjunctiva with well-defined edges and normal conjunctiva surrounding it. Traumatic haemorrhages are most common in the temporal region, with the inferior conjunctiva as the next most commonly affected area. Vision should be normal, including acuity, visual fields, and range of eye movements. On examination, the fundus should be normal.
The diagnosis of a subconjunctival haemorrhage is a clinical one. If there is no obvious traumatic cause, check the patient’s blood pressure. If raised, refer the patient appropriately. If the patient is taking warfarin, check the INR. If raised, refer for appropriate adjustments to the dose to bring the INR back into the target range. Recurrent or spontaneous, bilateral subconjunctival haemorrhages warrant investigations for bleeding disorders or other pathology.
Reassure the patient that subconjunctival haemorrhage is a benign condition that will resolve on its own in 2 to
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This question is part of the following fields:
- Ophthalmology
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Question 21
Incorrect
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A 45-year-old woman presents to her general practitioner with a complaint of feeling tired and lethargic for the past six months. She also reports a weight gain of approximately 10 kg during this time. Upon conducting a blood test, the following results were obtained: Hb 141 g/l, Na+ 141 mmol/l, Bilirubin 7 µmol/l, Platelets 331 * 109/l, K+ 4.1 mmol/l, ALP 71 u/l, WBC 4.6 * 109/l, Urea 3.9 mmol/l, ALT 31 u/l, Neuts 3.1 * 109/l, Creatinine 86 µmol/l, γGT 51 u/l, Lymphs 1.2 * 109/l, TSH 0.1 mu/l, Albumin 41 g/l, Eosin 0.2 * 109/l, free-T4 3 nmol/l, and CRP 4.1 mg/l. What would be the most appropriate next investigation to determine the cause of her fatigue?
Your Answer:
Correct Answer: MRI brain and pituitary
Explanation:When a patient has normal blood tests except for low thyroid function, which is indicated by low TSH and low free-T4, and presents with symptoms of hypothyroidism, it may be a case of secondary hypothyroidism caused by pituitary failure. This is a rare condition that requires imaging of the pituitary gland to rule out any anatomical or vascular causes, such as a tumor.
Understanding the Causes of Hypothyroidism
Hypothyroidism is a condition that affects a small percentage of women in the UK, with females being more susceptible than males. The most common cause of hypothyroidism is Hashimoto’s thyroiditis, an autoimmune disease that may be associated with other conditions such as IDDM, Addison’s or pernicious anaemia. Other causes of hypothyroidism include subacute thyroiditis, Riedel thyroiditis, thyroidectomy or radioiodine treatment, drug therapy, and dietary iodine deficiency. It is important to note that some of these causes may have an initial thyrotoxic phase.
In rare cases, hypothyroidism may also be caused by pituitary failure, which is known as secondary hypothyroidism. Additionally, there are certain conditions that may be associated with hypothyroidism, such as Down’s syndrome, Turner’s syndrome, and coeliac disease.
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This question is part of the following fields:
- Endocrinology/Metabolic Disease
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Question 22
Incorrect
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A 25-year-old homeless person is brought into the general practice surgery, having been found nearby in a disoriented state.
On examination, they have neck stiffness and a non-blanching rash on their arms. Their vital signs are stable except for fever and tachycardia. They score 13/15 on the Glasgow Coma Scale. An ambulance has been called to transfer them to the hospital.
Which of the following is the most appropriate action to perform while awaiting the ambulance?
Your Answer:
Correct Answer: Administer a dose of parenteral benzylpenicillin
Explanation:Appropriate Actions for Suspected Bacterial Meningitis with Non-Blanching Rash
When a patient presents with suspected bacterial meningitis and a non-blanching rash, it is crucial to take appropriate actions promptly. Administering a single dose of parenteral benzylpenicillin at the earliest opportunity is recommended, but this should not delay the transfer to the hospital. It is also important to notify the regional Public Health consultant about the suspected case.
While administering paracetamol for fever and starting the patient on high-flow oxygen may be necessary in some cases, they would not take priority over the administration of parenteral benzylpenicillin. Additionally, an IV fluid bolus is not indicated unless the patient’s vital signs are unstable. By taking these appropriate actions, healthcare providers can help ensure the best possible outcome for patients with suspected bacterial meningitis and non-blanching rash.
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This question is part of the following fields:
- Infectious Diseases
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Question 23
Incorrect
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A 49-year-old woman comes in with worries about her elbow pain after spending the weekend painting her house. During examination, there is noticeable pain around the lateral epicondyle, leading to a possible diagnosis of lateral epicondylitis. Which of the following movements would typically exacerbate the pain?
Your Answer:
Correct Answer: Resisted wrist extension with the elbow extended
Explanation:Lateral epicondylitis is aggravated when the wrist is extended or supinated against resistance while the elbow is extended.
Understanding Lateral Epicondylitis
Lateral epicondylitis, commonly known as tennis elbow, is a condition that often occurs after engaging in activities that the body is not accustomed to, such as painting or playing tennis. It is most prevalent in individuals aged 45-55 years and typically affects the dominant arm. The primary symptom of this condition is pain and tenderness localized to the lateral epicondyle. The pain is often exacerbated by wrist extension against resistance with the elbow extended or supination of the forearm with the elbow extended. Episodes of lateral epicondylitis can last between 6 months and 2 years, with patients experiencing acute pain for 6-12 weeks.
To manage lateral epicondylitis, it is essential to avoid muscle overload and engage in simple analgesia. Steroid injections and physiotherapy are also viable options for managing the condition. By understanding the symptoms and management options for lateral epicondylitis, individuals can take the necessary steps to alleviate pain and discomfort associated with this condition.
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This question is part of the following fields:
- Musculoskeletal
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Question 24
Incorrect
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A 56-year-old woman with a lengthy history of rheumatoid arthritis presents to the clinic with a chief complaint of dyspnea. During the examination, her oxygen saturation is found to be 92% on room air, and spirometry reveals a restrictive pattern accompanied by a decreased transfer factor. Which medication is the most probable cause of her symptoms?
Your Answer:
Correct Answer: Methotrexate
Explanation:The use of methotrexate as well as other anti-rheumatoid drugs like sulfasalazine and gold may lead to the development of lung fibrosis in patients. This patient is currently experiencing pulmonary fibrosis which could be attributed to the use of methotrexate.
Drugs that can lead to lung fibrosis
Lung fibrosis is a condition where the lung tissue becomes scarred and thickened, making it difficult for the lungs to function properly. There are several drugs that can cause lung fibrosis as a side effect. These drugs include amiodarone, which is used to treat heart rhythm problems, cytotoxic agents such as busulphan and bleomycin, which are used to treat cancer, and anti-rheumatoid drugs like methotrexate and sulfasalazine. Nitrofurantoin, an antibiotic used to treat urinary tract infections, and ergot-derived dopamine receptor agonists like bromocriptine, cabergoline, and pergolide, which are used to treat Parkinson’s disease, can also cause lung fibrosis. It is important to be aware of the potential side effects of these drugs and to discuss any concerns with a healthcare provider. Proper monitoring and management can help prevent or minimize the risk of lung fibrosis.
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This question is part of the following fields:
- Pharmacology/Therapeutics
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Question 25
Incorrect
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A 21-year-old college student is brought to the emergency department by her roommates, presenting confusion and fever. She had been complaining of a severe headache and neck stiffness since yesterday. Her roommates have also noticed what appears to be bruising.
Upon examination, she appears acutely unwell, with a fever and nuchal rigidity. A widespread purpuric rash is observed, as well as general pallor and mottling.
Considering the probable diagnosis, what should be provided to her roommates?Your Answer:
Correct Answer: Oral ciprofloxacin now
Explanation:Prophylaxis for contacts of patients with meningococcal meningitis involves the use of oral ciprofloxacin or rifampicin. In this case, the patient’s symptoms indicate meningococcal meningitis, and therefore, household members and close contacts should be offered prophylaxis with ciprofloxacin as the preferred drug. Intramuscular benzylpenicillin is not appropriate for prophylaxis, but may be given to a patient with suspected meningococcal meningitis in a pre-hospital setting. Intravenous benzylpenicillin is a treatment option for the patient, not for contacts. Intravenous cefotaxime is also a treatment option for the patient, but not a suitable prophylactic antibiotic for contacts. Waiting until symptoms develop to give oral ciprofloxacin is not recommended – it should be given immediately.
The investigation and management of suspected bacterial meningitis are intertwined due to the potential negative impact of delayed antibiotic treatment. Patients should be urgently transferred to the hospital, and an ABC approach should be taken initially. A lumbar puncture should be delayed in certain circumstances, and IV antibiotics should be given as a priority if there is any doubt. The bloods and CSF should be tested for various parameters, and prophylaxis should be offered to households and close contacts of patients affected with meningococcal meningitis.
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This question is part of the following fields:
- Infectious Diseases
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Question 26
Incorrect
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In which of the following respiratory diseases is clubbing not a feature?
Your Answer:
Correct Answer: Bronchitis
Explanation:The Significance of Finger Clubbing in Respiratory and Non-Respiratory Diseases
Finger clubbing, the loss of the natural angle between the nail and the nailbed, is a significant clinical sign that can indicate underlying respiratory and non-respiratory diseases. Suppurative lung diseases such as long-standing bronchiectasis, acute lung abscesses, and empyema are commonly associated with finger clubbing. However, uncomplicated bronchitis and chronic obstructive pulmonary disease (COPD) do not typically cause clubbing, and patients with COPD who develop clubbing should be promptly investigated for other causes, particularly lung cancer.
Finger clubbing is also commonly found in fibrosing alveolitis (idiopathic pulmonary fibrosis), asbestosis, and malignant diseases such as bronchial carcinoma and mesothelioma. In cases where finger clubbing is associated with hypertrophic pulmonary osteoarthropathy, a painful osteitis of the distal ends of the long bones of the lower arms and legs, it is designated grade IV.
Overall, finger clubbing is an important clinical sign that should prompt further investigation to identify underlying respiratory and non-respiratory diseases.
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This question is part of the following fields:
- Respiratory Medicine
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Question 27
Incorrect
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A 48-year-old man suffers an Achilles tendon rupture while playing basketball. He has never had any medical issues related to his muscles or bones. He recently began taking antibiotics for an infection and has been on them for the past week. What type of antibiotic is he likely taking?
Your Answer:
Correct Answer: Ciprofloxacin
Explanation:New-onset Achilles tendon disorders, including tendinitis and tendon rupture, are likely caused by ciprofloxacin, a medication with important side effects to consider.
Achilles tendon disorders are a common cause of pain in the back of the heel. These disorders can include tendinopathy, partial tears, and complete ruptures of the Achilles tendon. Certain factors, such as the use of quinolone antibiotics and high cholesterol levels, can increase the risk of developing these disorders. Symptoms of Achilles tendinopathy typically include gradual onset of pain that worsens with activity, as well as morning stiffness. Treatment for this condition usually involves pain relief, reducing activities that exacerbate the pain, and performing calf muscle eccentric exercises.
In contrast, an Achilles tendon rupture is a more serious condition that requires immediate medical attention. This type of injury is often caused by sudden, forceful movements during sports or running. Symptoms of an Achilles tendon rupture include an audible popping sound, sudden and severe pain in the calf or ankle, and an inability to walk or continue the activity. To help diagnose an Achilles tendon rupture, doctors may use Simmond’s triad, which involves examining the foot for abnormal angles and feeling for a gap in the tendon. Ultrasound is typically the first imaging test used to confirm a diagnosis of Achilles tendon rupture. If a rupture is suspected, it is important to seek medical attention from an orthopaedic specialist as soon as possible.
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This question is part of the following fields:
- Musculoskeletal
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Question 28
Incorrect
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A 50-year-old homeless female IVDU presents to the ER with a respiratory rate of 8/min and drowsiness. Her blood pressure is 85/60 mmHg and her heart rate is 120 bpm. The doctor observes pinpoint pupils and needle track marks on both arms during the physical examination. After receiving emergency treatment, she responds well and is recommended to stay as an inpatient for detoxification. What medication is suitable for her detoxification?
Your Answer:
Correct Answer: Methadone
Explanation:The recommended first-line treatment for opioid detoxification is methadone or buprenorphine. A patient with pinpoint pupils, hypotension, tachycardia, drowsiness, and low respiratory rate is likely to have overdosed on opioids. Methadone, a man-made opioid, is used to reduce withdrawal symptoms in those dependent on stronger opioids like heroin. NICE guidelines suggest outpatient detoxification as the routine option, unless the patient has not benefited from it in the past, has physical or mental health needs, social issues, or requires polydrug detoxification. Flumazenil and naloxone are not used in opioid detoxification, but in benzodiazepine poisoning and emergency management of opioid overdose, respectively. Pralidoxime is used in organophosphate poisoning, not in opioid overdoses.
Understanding Opioid Misuse and Management
Opioid misuse is a serious problem that can lead to various complications and health risks. Opioids are substances that bind to opioid receptors, including both natural and synthetic opioids. Signs of opioid misuse include rhinorrhoea, needle track marks, pinpoint pupils, drowsiness, watering eyes, and yawning. Complications of opioid misuse can range from viral and bacterial infections to venous thromboembolism and overdose, which can lead to respiratory depression and death.
In case of an opioid overdose, emergency management involves administering IV or IM naloxone, which has a rapid onset and relatively short duration of action. Harm reduction interventions such as needle exchange and testing for HIV, hepatitis B & C can also be helpful.
Patients with opioid dependence are usually managed by specialist drug dependence clinics or GPs with a specialist interest. Treatment options may include maintenance therapy or detoxification, with methadone or buprenorphine recommended as the first-line treatment by NICE. Compliance is monitored using urinalysis, and detoxification can last up to 4 weeks in an inpatient/residential setting and up to 12 weeks in the community. Understanding opioid misuse and management is crucial in addressing this growing public health concern.
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This question is part of the following fields:
- Pharmacology/Therapeutics
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Question 29
Incorrect
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A 65-year-old man with a history of lung cancer presents with a three-week history of loss of appetite, nausea, and fatigue. He appears mildly dehydrated on examination. You order some blood tests and the results are as follows:
Calcium 3.12 mmol/l
Albumin 40 g/l
Glucose (random) 6.7 mmol/l
Urea 10.2 mmol/l
Creatinine 115 µmol/l
Which medication that he is currently taking is most likely contributing to his symptoms?Your Answer:
Correct Answer: Bendroflumethiazide
Explanation:Hypercalcaemia is caused by thiazides.
Understanding the Causes of Hypercalcaemia
Hypercalcaemia is a medical condition characterized by high levels of calcium in the blood. In most cases, two conditions account for 90% of hypercalcaemia cases. The first is primary hyperparathyroidism, which is the most common cause in non-hospitalized patients. The second is malignancy, which is the most common cause in hospitalized patients. Malignancy-related hypercalcaemia may be due to various processes, including PTHrP from the tumor, bone metastases, and myeloma. For this reason, measuring parathyroid hormone levels is crucial when investigating patients with hypercalcaemia.
Other causes of hypercalcaemia include sarcoidosis, tuberculosis, histoplasmosis, vitamin D intoxication, acromegaly, thyrotoxicosis, milk-alkali syndrome, drugs such as thiazides and calcium-containing antacids, dehydration, Addison’s disease, and Paget’s disease of the bone. It is important to note that hypercalcaemia may occur with prolonged immobilization in patients with Paget’s disease of the bone, although this condition is usually normal.
In summary, hypercalcaemia can be caused by various medical conditions, with primary hyperparathyroidism and malignancy being the most common. Measuring parathyroid hormone levels is essential in investigating patients with hypercalcaemia. Other causes of hypercalcaemia include sarcoidosis, tuberculosis, histoplasmosis, vitamin D intoxication, acromegaly, thyrotoxicosis, milk-alkali syndrome, drugs, dehydration, Addison’s disease, and Paget’s disease of the bone.
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This question is part of the following fields:
- Oncology
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Question 30
Incorrect
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As a GPST1 in a GP practice, I have a patient named Sarah who is 24 years old and has come to me seeking information on cystic fibrosis. She has been informed in the past that she is a carrier. Can you provide me with the correct information to share with her?
Your Answer:
Correct Answer: Cystic fibrosis is due to a defect in the cystic fibrosis transmembrane conductance regulator gene (CFTR)
Explanation:Delta F508 on the long arm of chromosome 7 accounts for the majority of CF cases, with approximately 1 in 2500 births being affected by the disease. The carrier rate is estimated to be around 1 in 25.
Understanding Cystic Fibrosis and the Organisms that Affect Patients
Cystic fibrosis is a genetic disorder that causes thickened secretions in the lungs and pancreas. This condition is caused by a defect in the cystic fibrosis transmembrane conductance regulator gene (CFTR), which regulates chloride channels. In the UK, 80% of CF cases are due to delta F508 on chromosome 7, and the carrier rate is approximately 1 in 25.
CF patients are susceptible to colonization by certain organisms, including Staphylococcus aureus, Pseudomonas aeruginosa, Burkholderia cepacia, and Aspergillus. These organisms can cause infections and exacerbate symptoms in CF patients. It is important for healthcare providers to monitor and manage these infections to improve patient outcomes. By understanding the genetic basis of CF and the organisms that affect patients, healthcare providers can provide better care for those with this condition.
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This question is part of the following fields:
- Paediatrics
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